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[Early submaximal exercise test after acute myocardial infarct. Is it a useful test?]
Giornale Italiano Di Cardiologia
|January 1, 1982
Summary
Submaximal exercise tests after myocardial infarction are not reliable predictors of future cardiac events. Their reproducibility is poor, questioning their long-term value in asymptomatic patients.
Area of Science:
- Cardiology
- Exercise Physiology
Context:
- Assessing prognosis after acute myocardial infarction (AMI) is crucial for patient management.
- Submaximal treadmill exercise testing is a common tool used in early cardiac rehabilitation.
Purpose:
- To evaluate the predictive value and long-term reproducibility of early submaximal exercise testing in asymptomatic patients post-myocardial infarction.
Summary:
- 120 asymptomatic patients underwent early (2-3 weeks) submaximal exercise tests post-AMI and were followed for 15-54 months.
- Coronary events occurred in 14% (normal response), 55% (ischemic response), and 12% (abnormal non-ischemic response).
- Early exercise test results showed poor long-term reproducibility and limited predictive value for future coronary events.
Impact:
- Early submaximal exercise testing following acute myocardial infarction has limited predictive value for long-term outcomes.
- The poor reproducibility of these tests suggests they may not be optimal for risk stratification in this patient population.